The US Federal Aviation Administration (FAA) on Friday issued safety warnings for airlines flying over Central and South America. The FAA advised airlines to exercise caution because of possible "military activity" and GPS signal interference in these areas. Multiple Notices to Airmen (NOTAMs) were released covering Mexico, several Central American countries, Ecuador, Colombia, and parts of the eastern Pacific Ocean. The warnings started on Friday and will remain valid for 60 days. An FAA spokesperson told AFP, "The FAA issued flight advisory Notices to Airmen for specified areas of Mexico, Central America, Panama, Bogota, Guayaquil and Mazatlan Oceanic Flight Regions, and in airspace within the eastern Pacific Ocean." These advisories come amid rising tensions between the US and other nations, with a growing US military presence in the southern Caribbean. Recently, the Trump administration conducted military operations targeting Venezuela, including an attempt to capture President Nicolas Maduro. President Donald Trump has also said further military actions, possibly involving Colombia, could happen. Last week, Trump said drug cartels control Mexico and hinted that the US might strike land targets to fight organized crime. After the Venezuela operation, the FAA had limited commercial flights over parts of the Caribbean, causing airlines to cancel hundreds of flights. FAA Administrator Bryan Bedford told Reuters that the agency worked closely with the US military before the operation.